Diamond polishing brush

The utility model discloses a diamond polish-brush, and relates to the technical field of diamond polish-brushes, in particular to a diamond polish-brush which comprises a base, a support is fixedly installed on the top of the base, a lifting sliding groove is formed in one side of the support, and a first lead screw is rotationally connected into the lifting sliding groove. A lifting frame is in transmission connection with the outer side of the first lead screw, one side of the lifting frame is slidably connected into the lifting sliding groove, a first driven bevel gear is fixedly installed at the top of the first lead screw, a support is fixedly installed at the top of the support, and a rotating shaft is rotationally connected into the support. And a first driving bevel gear is fixedly mounted at one end of the rotating shaft. According to the diamond polish-brush, through the arrangement of the adjusting sliding seat, the diamond polish-brush has the effects that the polish-brush can be adjusted conveni